/Engine/Source/Developer/DerivedDataCache/Public/DerivedDataBuildKey.h
namespace UE { namespace DerivedData { template<typename CharType> [TStringBuilderBase](API\Runtime\Core\Containers\TStringBuilderBase)< CharType > & UE::DerivedData::operator<< ( [TStringBuilderBase](API\Runtime\Core\Containers\TStringBuilderBase)< CharType > & Builder, const [FBuildKey](API\Developer\DerivedDataCache\FBuildKey) & Key ) } }